96 lines
3.4 KiB
Java
96 lines
3.4 KiB
Java
/*
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* Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.awt.Canvas;
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import java.awt.Color;
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import java.awt.Dimension;
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import java.awt.Frame;
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import java.awt.Graphics;
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import java.awt.Point;
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import java.awt.Robot;
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import java.awt.ScrollPane;
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/*
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* @test
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* @bug 8311689
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* @key headful
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* @requires os.family=="windows"
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* @summary Verifies ScrollPane allows viewing the whole contents of its child
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* @run main ScrollPaneScrollEnd
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*/
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public final class ScrollPaneScrollEnd {
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private static final Color CANVAS_BACKGROUND = new Color(255, 200, 200);
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private static final Color CANVAS_FOREGROUND = new Color(255, 255, 200);
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private static final int OFFSET = 12;
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private static final Dimension CANVAS_SIZE = new Dimension(900, 600);
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private static final Dimension SCROLL_PANE_SIZE =
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new Dimension(CANVAS_SIZE.width / 3, CANVAS_SIZE.height / 3);
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private static final int SCROLL_OFFSET = 100;
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private static final int DELAY = 200;
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public static void main(String[] args) throws Exception {
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Canvas canvas = new Canvas() {
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@Override
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public void paint(Graphics g) {
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g.setColor(CANVAS_BACKGROUND);
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g.fillRect(0, 0, getWidth(), getHeight());
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g.setColor(CANVAS_FOREGROUND);
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g.fillRect(OFFSET, OFFSET,
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getWidth() - OFFSET * 2, getHeight() - OFFSET * 2);
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}
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};
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canvas.setSize(CANVAS_SIZE);
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ScrollPane scrollPane = new ScrollPane(ScrollPane.SCROLLBARS_AS_NEEDED);
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scrollPane.add(canvas);
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scrollPane.setSize(SCROLL_PANE_SIZE);
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Frame frame = new Frame("ScrollPaneScrollEnd");
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frame.add(scrollPane, "Center");
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frame.setLocation(100, 100);
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frame.pack();
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frame.setVisible(true);
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final Robot robot = new Robot();
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robot.waitForIdle();
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robot.delay(DELAY);
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final Dimension vp = scrollPane.getViewportSize();
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final Point expected = new Point(CANVAS_SIZE.width - vp.width,
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CANVAS_SIZE.height - vp.height);
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scrollPane.setScrollPosition(CANVAS_SIZE.width + SCROLL_OFFSET,
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CANVAS_SIZE.height + SCROLL_OFFSET);
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try {
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if (!expected.equals(scrollPane.getScrollPosition())) {
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throw new Error("Can't scroll to the end of the child component");
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}
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} finally {
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frame.dispose();
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}
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}
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}
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